Java 使用 Ganymed SSH-2 连接 Linux

矫情吗；* 2023-10-07 13:46 18阅读 0赞

## `一、引入jar包（基于Maven项目）` ##

<dependency>
        <groupId>ch.ethz.ganymed</groupId>
        <artifactId>ganymed-ssh2</artifactId>
        <version>build210</version>
    </dependency>

## `二、Ganymed SSH2 API文档` ##

[Ganymed SSH2 API文档][Ganymed SSH2 API]

## `三、连接实例` ##

import java.io.BufferedReader;
    import java.io.IOException;
    import java.io.InputStream;
    import java.io.InputStreamReader;
    import java.io.PrintWriter;
    
    import ch.ethz.ssh2.Connection;
    import ch.ethz.ssh2.Session;
    import ch.ethz.ssh2.StreamGobbler;
    
    public class ConnectionSSH{
        
        public static void main(String[] args) {
        
            try {
        
                Connection conn = new Connection("127.0.0.1");
                conn.connect();
                boolean isAuthenticated = conn.authenticateWithPassword("root", "123456");
                
                if (isAuthenticated == false) {
        
                	throw new IOException("Authentication failed");
                }
                final Session sess = conn.openSession();
                sess.requestPTY("bash");
                sess.startShell();
           		
           		Thread thread = new Thread(new Runnable(){
        
    				@Override
    				public void run() {
        
    					OutputStream out = sess.getStdin();
    					String temp = "";
    					try{
        
    						out.write(temp.getBytes(StandardCharsets.UTF_8));
    						out.flush();
    					}catch(IOException e){
        
    						e.printStackTrace();
    					}			
    				}
    			});
    			
          		Thread thread1 = new Thread(new Runnable(){
        
    				@Override
    				public void run() {
        
    					try{
        
    						InputStream stdout = new StreamGobbler(sess.getStdout());
    						byte[] bytes = new byte[1024];
    						int i;
    						while((i = stdout.read(bytes)) != -1) {
        
    							System.out.println(new String(bytes, 0, i, StandardCharsets.UTF_8));
    						}
    					}catch(IOException e){
        
    						e.printStackTrace();
    					}			
    				}
    			});
    		
          		Thread thread2 = new Thread(new Runnable(){
        
    				@Override
    				public void run() {
        
    					Scanner scanner = new Scanner(System.in);
    					scanner.useDelimiter("\n");
    					while(scanner.hasNext()) {
        
    					try{
        
    						String cmd = scanner.next() + "\r"; 
    						OutputStream out = sess.getStdin();
    						out.write(cmd.getBytes(StandardCharsets.UTF_8));
    						out.flush();
    					}catch(IOException e){
        
    						e.printStackTrace();
    					}							
    					}
    		
    				}
    			});
    			
    			thread.start();
    			thread1.start();
    			thread2.start();
    
                } catch (IOException e) {
        
    	            e.printStackTrace();
                }
        }
       
    }

[Ganymed SSH2 API]: http://www.ganymed.ethz.ch/ssh2/javadoc/overview-summary.html